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\begin{tabular}{lcccccc} \hline
 & (1) & (2) & (3) & (4) & (5) & (6) \\
 & OLS & OLS & OLS & 2SLS & 2SLS & 2SLS \\
VARIABLES & Electoral democracy index & Electoral democracy index & Electoral democracy index & Electoral democracy index & Electoral democracy index & Electoral democracy index \\ \hline
 &  &  &  &  &  &  \\
Arms technology lag = L, & 0.20*** & 0.22*** & 0.21*** & 0.59*** & 0.66*** & 0.65*** \\
 & (0.05) & (0.05) & (0.05) & (0.20) & (0.20) & (0.21) \\
Lag GDP per capita (log) = L, & -0.19*** & -0.16*** & -0.17*** & -0.21*** & -0.19*** & -0.20*** \\
 & (0.05) & (0.04) & (0.05) & (0.06) & (0.05) & (0.05) \\
Total oil income per capita (log) = L, & -0.40 &  & -0.45 & -0.15 &  & -0.25 \\
 & (0.30) &  & (0.36) & (0.35) &  & (0.39) \\
Total natural resource p.c. (log) = L, &  & -0.17 & 0.06 &  & 0.00 & 0.12 \\
 &  & (0.23) & (0.26) &  & (0.26) & (0.27) \\
 &  &  &  &  &  &  \\
Observations & 1,721 & 1,587 & 1,587 & 1,721 & 1,587 & 1,587 \\
Countries & 126 & 126 & 126 & 126 & 126 & 126 \\
 Kleibergen-Paap F-statistic &  &  &  & 39.52 & 40.39 & 40.69 \\ \hline
\multicolumn{7}{c}{ Robust standard errors in parentheses} \\
\multicolumn{7}{c}{ *** p$<$0.01, ** p$<$0.05, * p$<$0.1} \\
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